Home / 198,631.66-274,116.90-107,993.74

Finding the Fourth Proportional to 198,631.66, 274,116.90 and 107,993.74

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Solution

The fourth proportional to 198,631.66, 274,116.90 and 107,993.74 is: 149,034.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,631.66 : 274,116.90 = 107,993.74 : x
  2. Step 2: Convert to fraction form
    198,631.66/274,116.90 = 107,993.74/x
  3. Step 3: Cross multiply
    198,631.66x = 274,116.90 × 107,993.74
  4. Step 4: Simplify right side
    198,631.66x = 29,602,909,228.21
  5. Step 5: Solve for x
    x = 29,602,909,228.21/198,631.66
  6. Step 6: Final answer
    x = 149,034.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.